Hemlock uses a Pixel-Font

Description

Please not. It should be possible to use a smoothed Monaco. As much as I like Monaco, please without pixels. For the hardcore pixel-Monaco fans there might be a switch, but the default should be the smoothed version.

There are also people who feel (myself included) that the bitmap screen fonts are better. If I picked Monaco 10, and ended up with anti-aliased text instead of the screen bitmap, I'd be very unhappy.

I suppose that people who like the anti-aliased text must feel the same way when they get a bitmap screen font.

Therefore, I added (in r7684) a preference which governs whether bitmap screen fonts are used in editor and listener windows. It's on by default, because I think this is most consistent with other applications. (For example, TextEdit?.app will use a bitmap screen font for Monaco 10.)